CN211583179U - Disposable arteriovenous puncture blood taking needle and protection device thereof - Google Patents
Disposable arteriovenous puncture blood taking needle and protection device thereof Download PDFInfo
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- CN211583179U CN211583179U CN201821053645.1U CN201821053645U CN211583179U CN 211583179 U CN211583179 U CN 211583179U CN 201821053645 U CN201821053645 U CN 201821053645U CN 211583179 U CN211583179 U CN 211583179U
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- 239000008280 blood Substances 0.000 title claims abstract description 89
- 210000004369 blood Anatomy 0.000 title claims abstract description 89
- 238000010241 blood sampling Methods 0.000 claims abstract description 23
- 238000005452 bending Methods 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims description 79
- 229920003023 plastic Polymers 0.000 claims description 79
- -1 polytetrafluoroethylene Polymers 0.000 claims description 21
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 208000015181 infectious disease Diseases 0.000 abstract description 11
- 238000003780 insertion Methods 0.000 description 14
- 230000037431 insertion Effects 0.000 description 14
- 238000001631 haemodialysis Methods 0.000 description 4
- 230000000322 hemodialysis Effects 0.000 description 4
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- 230000002393 scratching effect Effects 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 241000219104 Cucurbitaceae Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000020354 squash Nutrition 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
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- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model discloses a disposable arteriovenous puncture blood taking needle and protection device thereof, including puncture portion, blood sampling portion and hose, puncture portion is connected with the one end of hose, and the other end of hose can be dismantled and be connected with the connector. The utility model discloses, can promote blood sampling speed, effectively improve medical personnel's work efficiency, when the test tube that is used for storing the censorship blood sample needs to be changed, can hold between the fingers clamp bending clamp plate and backup pad, make the briquetting insert cylinder type recess and flatten the hose, and then make the hose blockked up, can prevent patient's blood loss, with the quantity that reduces patient's blood, can with the cavity contact pin after using assign in the inside of slot, assign in the inside of draw-in groove two slice handles, utilize the card hole of fixture block cooperation to die the inside of puncture portion card at the cylinder, can prevent that the cavity contact pin from being extracted, can effectively prevent that the cavity contact pin from stabbing medical personnel, avoid medical personnel to cause because of being stabbed by the cavity contact pin and take place the infection phenomenon.
Description
Technical Field
The utility model relates to the technical field of medical equipment, more specifically say, it relates to a disposable arteriovenous puncture blood taking needle and protection device thereof.
Background
At present hemodialysis administrative or technical offices gather blood and use and be that disposable 5ML syringe connects the blood sampling of arteriovenous pjncture needle, because blood sampling speed is slow, seriously influences medical personnel's work efficiency, when gathering patient's blood, need to return again the needle point with blood injection to the test tube of inspection blood sample, medical personnel often are wounded by the needle because of carelessness. Hemodialysis patient examination items are many, need a plurality of test tubes, and it is many to gather blood, and 5ML syringe gathers once inadequately (20ML syringe needle point is too thick, and is big to test tube leather collar damage, easily causes the blood leakage), need gather once more, causes patient's blood loss easily for patient's blood's quantity increases to some extent. The existing clinical disposable blood taking needle has no protection device, so that the puncture infection phenomenon of partial medical care personnel is caused in the using process of a hemodialysis department, and therefore, the disposable arteriovenous puncture blood taking needle and the protection device thereof are provided.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a disposable arteriovenous puncture blood taking needle and a protection device thereof, the blood taking work can be conveniently completed through the matching of a puncture part and a blood taking part, thereby the blood taking speed is improved, the work efficiency of medical personnel is effectively improved, a hose is inserted into the cylindrical through groove, when the blood of a patient is collected, when a test tube for storing a blood sample to be checked needs to be replaced, a bending pressing plate and a supporting plate can be pinched by fingers, a pressing block is inserted into the cylindrical groove to flatten the hose, further the hose is blocked, the blood loss of the patient can be prevented, the blood consumption of the patient can be reduced, a used hollow contact pin can be inserted into the slot, two sheet-shaped handles are inserted into the clamping groove, the puncture part is blocked in the cylinder by utilizing the matching of a clamping block and a clamping hole, the hollow contact pin can be prevented from being pulled out, can effectively prevent the hollow contact pin from stabbing medical care personnel and avoid causing the medical care personnel to be stabbed by the hollow contact pin to cause the infection phenomenon.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a disposable arteriovenous puncture blood taking needle comprises a puncture part, a blood taking part and a hose, wherein the puncture part is connected with one end of the hose, the other end of the hose is detachably connected with a connector, and the connector is connected with the blood taking part;
the puncture part comprises a first plastic fixing pipe, one end of the first plastic fixing pipe is inserted into one end of the hose, a hollow contact pin is packaged in the end, away from the hose, of the first plastic fixing pipe through a polytetrafluoroethylene block, two sheet-shaped handles are symmetrically arranged on the outer portion of the first plastic fixing pipe, and clamping holes are formed in the two sheet-shaped handles;
the blood sampling portion comprises a second plastic fixing pipe with one end inserted in the connector, a connecting pipe is fixedly arranged at the other end of the second plastic fixing pipe, and one end, far away from the second plastic fixing pipe, of the connecting pipe is connected with a plastic needle.
Through adopting above-mentioned technical scheme, the cavity contact pin is used for puncturing patient's arteriovenous blood vessel and draws blood, the card hole on two slice handles is used for blocking each other with the fixture block, and then die the inside at the protection part with puncture portion card, can prevent effectively that cavity contact pin from stabbing medical personnel, avoid causing medical personnel because of being stabbed by the cavity contact pin and taking place the infection phenomenon, blood sampling portion is used for introducing patient's blood inside the test tube that is used for the censorship, cooperate completion blood sampling work that can be convenient mutually through puncture portion and blood sampling portion.
Furthermore, the end part of the first plastic fixing pipe inserted in one end of the hose is a necking part, a plurality of convex rings are arranged outside the necking part at equal intervals, and a check ring is integrally arranged between the convex rings and the flaky handle on the necking part.
Through adopting above-mentioned technical scheme, protruding circle has better anti-skidding effect, can prevent that first plastics retainer plate from droing from the tip of hose, and the sealing performance between the multiplicable throat portion of protruding circle and the hose inner wall can prevent first plastics retainer plate and hose connection department weeping simultaneously, and the retaining ring is used for restricting the inside length of first plastics retainer plate insertion hose end portion.
Further, the diameter of the convex ring is smaller than that of the retainer ring.
Through adopting above-mentioned technical scheme, can guarantee that the side of hose end and retaining ring is inconsistent to guarantee the limiting displacement of the inside length of first plastics retainer tube insertion hose end.
Furthermore, the edge of the end part of the connecting pipe, which is far away from the second plastic fixing pipe, is of a fillet structure, and the edge of the end part of the plastic needle, which is far away from the connecting pipe, is of a fillet structure.
Through adopting above-mentioned technical scheme, can reduce the connecting pipe and keep away from the one end tip edge of the fixed pipe of second plastics and the impact force when the one end tip edge of connecting pipe is kept away from with the test tube mouth collision that is used for storing the censorship blood sample to avoid the test tube breakage.
Furthermore, two stop blocks are symmetrically arranged outside the second plastic fixing pipe.
Through adopting above-mentioned technical scheme, two dogs are used for restricting the fixed pipe of second plastics and insert the inside length of connector.
Further, the outside of hose still is equipped with the clamping part, the clamping part includes arc splint, the one end of arc splint is connected with the clamp plate, and the other end of arc splint is connected with the backup pad, install the lug between two parties on the backup pad is close to a side of clamp plate, the cylinder type that parallels with the backup pad is seted up to the inside of lug leads to the groove, and sets up the cylinder type recess that leads to the groove and be linked together with the cylinder type on the lug is close to a side of clamp plate between two parties, the clamp plate is close to the fixed briquetting that can stretch into the cylinder type recess that is equipped with on a side of lug, and the one.
Through adopting above-mentioned technical scheme, with the inside that the hose inserted the cylinder type and led to the groove, when gathering patient's blood, when the test tube that is used for storing the censorship blood sample need be changed, can hold between the fingers and bend clamp plate and backup pad for the briquetting inserts cylinder type recess and flattens the hose, and then makes the hose blockked up, can prevent patient's blood loss, with the quantity that reduces patient's blood.
Furthermore, the lateral surface of polytetrafluoroethylene piece extends to the outside of the fixed pipe of first plastics, and the lateral surface of polytetrafluoroethylene piece is cambered surface structure.
By adopting the technical scheme, the outer side surface of the polytetrafluoroethylene block can be prevented from scratching the skin of a patient when the hollow contact pin punctures the artery and vein blood vessels of the patient.
The utility model also provides a protective device of the disposable arteriovenous puncture blood taking needle, which comprises a sleeve sleeved outside the hose, wherein the outer side surface of the sleeve is integrally provided with a hinged lug, the inside of the hinged lug is hinged with a connecting belt through a pin shaft, and one end of the connecting belt, which is far away from the hinged lug, is fixedly connected with a protective part;
the protection part comprises a cylinder fixedly connected to one end of the connecting band far away from the hinge lug, a clamping groove is formed in one end face of the cylinder, a slot is formed in the center of the interior of the cylinder passing through the clamping groove, and two elastic clamping parts are symmetrically embedded in the junction of the interior of the cylinder and the top wall of the clamping groove;
the elastic clamping part comprises a cylinder body fixedly embedded in the cylinder, the two ends of the cylinder body are of a closed structure, a spring, a square slider and a clamping block are arranged in the cylinder body, the upper end of the spring is abutted to the inner top wall of the cylinder body, the bottom end of the spring is abutted to the upper portion of the square slider, the bottom of the square slider is fixedly connected with the upper portion of the clamping block, the bottom of the clamping block penetrates through the bottom wall of the cylinder body and extends to the inside of the clamping groove, the bottom of the clamping block is abutted to the bottom wall of the clamping groove, and the bottom of the clamping block is provided with an inclined plane facing the outside of the.
Through adopting above-mentioned technical scheme, can with the cavity contact pin after the use assign in the inside of slot, assign in the inside of draw-in groove two slice handles, utilize fixture block cooperation card hole to die the inside of puncture portion card at the cylinder, can prevent that the cavity contact pin from being extracted, can prevent effectively that the cavity contact pin from stabbing medical personnel, avoid causing medical personnel because of being stabbed by the cavity contact pin and take place the infection phenomenon.
Furthermore, the other end face of the cylinder is of an arc-shaped structure.
Through adopting above-mentioned technical scheme, can prevent that cylinder scratch medical personnel and patient.
Further, the cylinder is made of polyethylene plastic.
Through adopting above-mentioned technical scheme, be convenient for produce the cylinder through injection moulding's mode, polyethylene plastics possesses better corrosion resistance simultaneously, the life of multiplicable cylinder.
To sum up, the utility model discloses mainly have following beneficial effect:
1. the utility model can conveniently complete the blood sampling work by matching the puncture part and the blood sampling part, thereby improving the blood sampling speed and effectively improving the work efficiency of medical staff;
2. the utility model inserts the hose into the cylindrical through groove, when the blood of the patient is collected and the test tube for storing the blood sample to be checked needs to be replaced, the bending pressing plate and the supporting plate can be pinched by fingers, so that the pressing block is inserted into the cylindrical groove to flatten the hose, the hose is blocked, the blood loss of the patient can be prevented, and the blood consumption of the patient can be reduced;
3. the utility model discloses, can with the cavity contact pin after using assign in the inside of slot, assign in the inside of draw-in groove two slice handles, utilize fixture block cooperation card hole to die the puncture part card in the inside of cylinder, can prevent that the cavity contact pin from being extracted, can prevent effectively that the cavity contact pin from stabbing medical personnel, avoid causing medical personnel to take place the infection phenomenon because of being stabbed by the cavity contact pin, be worth promoting and popularizing.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic structural view of a protection portion according to an embodiment of the present invention;
fig. 4 is a schematic partial sectional structure view of a protection member according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional structural view of an elastic clamping portion according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a clamping portion according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a bump according to an embodiment of the present invention.
In the figure: 1. a puncture section; 2. a clamping portion; 3. a protection part; 4. a blood collection part; 5. a first plastic mounting tube; 6. a polytetrafluoroethylene block; 7. a hollow pin; 8. a sheet-like handle; 9. a clamping hole; 10. a hose; 11. a sleeve; 12. a hinge ear; 13. a connecting belt; 14. a connector; 15. a second plastic fixed tube; 16. a connecting pipe; 17. a plastic needle; 18. a stopper; 19. a cylinder; 20. a slot; 21. a card slot; 22. a clamping block; 23. a barrel; 24. an elastic clamping part; 25. a spring; 26. a square slider; 27. a necking part; 28. a convex ring; 29. a retainer ring; 30. an arc-shaped splint; 31. briquetting; 32. pressing a plate; 33. bending the pressing plate; 34. a support plate; 35. a cylindrical through groove; 36. a bump; 37. a cylindrical groove.
Detailed Description
Example 1:
the present invention will be described in further detail with reference to fig. 1, 2, 6 and 7.
A disposable arteriovenous puncture blood taking needle is shown in figures 1, 2, 6 and 7 and comprises a puncture part 1, a blood taking part 4 and a hose 10, wherein the puncture part 1 is connected with one end of the hose 10, the other end of the hose 10 is detachably connected with a connector 14, and the connector 14 is connected with the blood taking part 4;
the puncture part 1 comprises a first plastic fixing tube 5 with one end inserted into one end of a hose 10, a hollow contact pin 7 is packaged in one end of the first plastic fixing tube 5 far away from the hose 10 through a polytetrafluoroethylene block 6, two sheet-shaped handles 8 are symmetrically arranged outside the first plastic fixing tube 5, and clamping holes 9 are formed in the two sheet-shaped handles 8;
the blood sampling part 4 comprises a second plastic fixing pipe 15 with one end inserted in the connector 14, the other end of the second plastic fixing pipe 15 is fixedly provided with a connecting pipe 16, and one end of the connecting pipe 16 far away from the second plastic fixing pipe 15 is connected with a plastic needle 17. Cavity contact pin 7 is used for puncturing patient's arteriovenous blood vessel and draws blood, card hole 9 on two slice handles 8 is used for blocking each other with fixture block 22, and then die the inside at protection part 3 with puncture part 1 card, can prevent effectively that cavity contact pin 7 from stabbing medical personnel, avoid causing medical personnel because of being stabbed by cavity contact pin 7 and taking place the infection phenomenon, blood sampling portion 4 is used for introducing patient's blood inside the test tube that is used for the censorship, cooperate the completion blood sampling work that can be convenient through puncture part 1 and blood sampling portion 4.
Preferably, the end part of the first plastic fixing tube 5 inserted into one end of the flexible tube 10 is a necking part 27, a plurality of convex rings 28 are equidistantly arranged outside the necking part 27, and a retaining ring 29 is integrally arranged on the necking part 27 between the convex rings 28 and the sheet-shaped handle 8. The convex ring 28 has a good anti-slip function, the first plastic fixing pipe 5 can be prevented from falling off from the end of the hose 10, meanwhile, the convex ring 28 can increase the sealing performance between the necking part 27 and the inner wall of the hose 10, the leakage of the liquid at the joint of the first plastic fixing pipe 5 and the hose 10 can be prevented, and the check ring 29 is used for limiting the length of the first plastic fixing pipe 5 inserted into the end of the hose 10.
Preferably, the diameter of the collar 28 is smaller than the diameter of the collar 29. It is ensured that the end of the hose 10 abuts against the side of the collar 29, thereby ensuring that the collar 29 limits the length of insertion of the first plastic retainer tube 5 into the interior of the end of the hose 10.
Preferably, the end edge of the connecting pipe 16 far away from the second plastic fixing pipe 15 is in a rounded structure, and the end edge of the plastic needle 17 far away from the connecting pipe 16 is in a rounded structure. The impact force when the end edge of the end of the connecting tube 16 away from the second plastic fixing tube 15 and the end edge of the plastic needle 17 away from the connecting tube 16 collide with the test tube port for storing the submitted blood sample can be reduced, thereby avoiding the test tube from being broken.
Preferably, two stoppers 18 are symmetrically provided on the outside of the second plastic fixing tube 15. Two stops 18 are used to limit the length of insertion of the second plastic mounting tube 15 into the interior of the coupling head 14.
Preferably, hose 10's outside still overlaps and is equipped with clamping part 2, clamping part 2 includes arc splint 30, arc splint 30's one end is connected with clamp plate 32, and arc splint 30's the other end is connected with backup pad 34, install lug 36 between two parties on backup pad 34 is close to the side of clamp plate 32, the logical groove 35 of cylinder type that parallels with backup pad 34 is seted up to lug 36's inside, and lug 36 is close to and sets up the cylinder type recess 37 that is linked together with the logical groove 35 of cylinder type on the side of clamp plate 32 between two parties, clamp plate 32 is close to fixed being equipped with on the side of lug 36 and can stretch into the briquetting 31 of cylinder type recess 37, and the one end that arc splint 30 was kept away from to clamp. Insert the inside that the groove 35 was led to the cylinder type with hose 10, when gathering patient's blood, when the test tube that is used for storing the censorship blood sample needs to be changed, can hold between the fingers clamp plate 33 and the backup pad 34 of bending for briquetting 31 inserts cylinder type recess 37 and squashes hose 10, and then makes hose 10 blockked up, can prevent patient's blood loss, with the quantity that reduces patient's blood.
Preferably, the outer side surface of the polytetrafluoroethylene block 6 extends to the outside of the first plastic fixing tube 5, and the outer side surface of the polytetrafluoroethylene block 6 is of an arc surface structure. Can prevent the outer side surface of the polytetrafluoroethylene block 6 from scratching the skin of the patient when the hollow insertion needle 7 punctures the artery and vein vessels of the patient.
Example 2
The present invention will be described in further detail with reference to the accompanying fig. 1 to 7.
A disposable arteriovenous puncture blood taking needle is shown in figures 1-7 and comprises a puncture part 1, a blood taking part 4 and a hose 10, wherein the puncture part 1 is connected with one end of the hose 10, the other end of the hose 10 is detachably connected with a connector 14, and the connector 14 is connected with the blood taking part 4;
the puncture part 1 comprises a first plastic fixing tube 5 with one end inserted into one end of a hose 10, a hollow contact pin 7 is packaged in one end of the first plastic fixing tube 5 far away from the hose 10 through a polytetrafluoroethylene block 6, two sheet-shaped handles 8 are symmetrically arranged outside the first plastic fixing tube 5, and clamping holes 9 are formed in the two sheet-shaped handles 8;
the blood sampling part 4 comprises a second plastic fixing pipe 15 with one end inserted in the connector 14, the other end of the second plastic fixing pipe 15 is fixedly provided with a connecting pipe 16, and one end of the connecting pipe 16 far away from the second plastic fixing pipe 15 is connected with a plastic needle 17.
Through adopting above-mentioned technical scheme, cavity contact pin 7 is used for puncturing patient's arteriovenous blood vessel and draws blood, card hole 9 on two slice handles 8 is used for blocking each other with fixture block 22, and then die the inside at protection part 3 with puncture part 1 card, can prevent effectively that cavity contact pin 7 from stabbing medical personnel, avoid causing medical personnel because of being stabbed by cavity contact pin 7 and taking place the infection phenomenon, blood sampling portion 4 is used for introducing patient's blood inside the test tube that is used for the censorship, cooperate the completion blood sampling work that can be convenient through puncture part 1 and blood sampling portion 4.
Preferably, the end part of the first plastic fixing tube 5 inserted into one end of the flexible tube 10 is a necking part 27, a plurality of convex rings 28 are equidistantly arranged outside the necking part 27, and a retaining ring 29 is integrally arranged on the necking part 27 between the convex rings 28 and the sheet-shaped handle 8. The convex ring 28 has a good anti-slip function, the first plastic fixing pipe 5 can be prevented from falling off from the end of the hose 10, meanwhile, the convex ring 28 can increase the sealing performance between the necking part 27 and the inner wall of the hose 10, the leakage of the liquid at the joint of the first plastic fixing pipe 5 and the hose 10 can be prevented, and the check ring 29 is used for limiting the length of the first plastic fixing pipe 5 inserted into the end of the hose 10.
Preferably, the diameter of the collar 28 is smaller than the diameter of the collar 29. It is ensured that the end of the hose 10 abuts against the side of the collar 29, thereby ensuring that the collar 29 limits the length of insertion of the first plastic retainer tube 5 into the interior of the end of the hose 10.
Preferably, the end edge of the connecting pipe 16 far away from the second plastic fixing pipe 15 is in a rounded structure, and the end edge of the plastic needle 17 far away from the connecting pipe 16 is in a rounded structure. The impact force when the end edge of the end of the connecting tube 16 away from the second plastic fixing tube 15 and the end edge of the plastic needle 17 away from the connecting tube 16 collide with the test tube port for storing the submitted blood sample can be reduced, thereby avoiding the test tube from being broken.
Preferably, two stoppers 18 are symmetrically provided on the outside of the second plastic fixing tube 15. Two stops 18 are used to limit the length of insertion of the second plastic mounting tube 15 into the interior of the coupling head 14.
Preferably, hose 10's outside still overlaps and is equipped with clamping part 2, clamping part 2 includes arc splint 30, arc splint 30's one end is connected with clamp plate 32, and arc splint 30's the other end is connected with backup pad 34, install lug 36 between two parties on backup pad 34 is close to the side of clamp plate 32, the logical groove 35 of cylinder type that parallels with backup pad 34 is seted up to lug 36's inside, and lug 36 is close to and sets up the cylinder type recess 37 that is linked together with the logical groove 35 of cylinder type on the side of clamp plate 32 between two parties, clamp plate 32 is close to fixed being equipped with on the side of lug 36 and can stretch into the briquetting 31 of cylinder type recess 37, and the one end that arc splint 30 was kept away from to clamp. Insert the inside that the groove 35 was led to the cylinder type with hose 10, when gathering patient's blood, when the test tube that is used for storing the censorship blood sample needs to be changed, can hold between the fingers clamp plate 33 and the backup pad 34 of bending for briquetting 31 inserts cylinder type recess 37 and squashes hose 10, and then makes hose 10 blockked up, can prevent patient's blood loss, with the quantity that reduces patient's blood.
Preferably, the outer side surface of the polytetrafluoroethylene block 6 extends to the outside of the first plastic fixing tube 5, and the outer side surface of the polytetrafluoroethylene block 6 is of an arc surface structure. Can prevent the outer side surface of the polytetrafluoroethylene block 6 from scratching the skin of the patient when the hollow insertion needle 7 punctures the artery and vein vessels of the patient.
The utility model also provides a protective device of a disposable arteriovenous puncture blood taking needle, which comprises a sleeve 11 sleeved outside the hose 10, wherein the outer side surface of the sleeve 11 is integrally provided with a hinged lug 12, the inside of the hinged lug 12 is hinged with a connecting belt 13 through a pin shaft, and one end of the connecting belt 13, which is far away from the hinged lug 12, is fixedly connected with a protective part 3;
the protection part 3 comprises a cylinder 19 fixedly connected to one end of the connecting belt 13 far away from the hinge lug 12, a clamping groove 21 is formed in one end face of the cylinder 19, a slot 20 is formed in the center of the inside of the cylinder 19 passing through the clamping groove 21, and two elastic clamping parts 24 are symmetrically embedded in the junction of the inside of the cylinder 19 and the top wall of the clamping groove 21;
the elastic clamping part 24 comprises a cylinder 23 fixedly embedded in the cylinder 19, two ends of the cylinder 23 are of a closed structure, a spring 25, a square slider 26 and a fixture block 22 are arranged in the cylinder 23, the upper end of the spring 25 is abutted against the inner top wall of the cylinder 23, the bottom end of the spring 25 is abutted against the upper part of the square slider 26, the bottom of the square slider 26 is fixedly connected with the upper part of the fixture block 22, the bottom of the fixture block 22 penetrates through the bottom wall of the cylinder 23 and extends into the clamping groove 21, the bottom of the fixture block 22 is abutted against the bottom wall of the clamping groove 21, the bottom of the fixture block 22 is provided with an inclined plane which is directly opposite to the outer side of the clamping groove 21, the inclined plane has a guiding effect and is beneficial to the smooth insertion of the two sheet-shaped handles 8 into the clamping groove 21, and after the two sheet-shaped handles 8 are inserted into the clamping groove 21, the fixture block 22 is, the other surface of the latch 22 is a vertical plane, so that the two sheet-shaped handles 8 cannot be pulled out from the inside of the slot 21, and the puncturing part 1 can be locked inside the cylindrical body 19. Can with the hollow contact pin 7 after using assign in the inside of slot 20, assign in the inside of draw-in groove 21 two slice handles 8, utilize fixture block 22 cooperation card hole 9 to die puncture portion 1 card in the inside of cylinder 19, can prevent that hollow contact pin 7 from being extracted, can prevent effectively that hollow contact pin 7 from stabbing medical personnel, avoid causing medical personnel to take place the infection phenomenon because of being stabbed by hollow contact pin 7.
Preferably, the other end surface of the cylindrical body 19 is an arc-shaped structure. The cylinder 19 can be prevented from scratching medical staff and patients.
Preferably, said cylindrical body 19 is made of polyethylene plastic. The cylinder 19 is convenient to produce through injection moulding, and meanwhile, the polyethylene plastic has better corrosion resistance, so that the service life of the cylinder 19 can be prolonged.
The disposable arteriovenous puncture lancets of example 1 and example 2 were simultaneously used in two hemodialysis departments and the results are shown in the following table:
as can be known from the analysis of the data in the table above, the disposable arteriovenous puncture blood taking needle is matched with the protection device thereof for use, so that the phenomenon that medical personnel are stabbed by the hollow contact pin 7 to infect can be effectively avoided.
The working principle is as follows: the disposable arteriovenous puncture blood taking needle can conveniently finish blood taking work by matching the puncture part 1 with the blood taking part 4, thereby improving the blood taking speed and effectively improving the working efficiency of medical personnel; the hose 10 is inserted into the cylindrical through groove 35, when blood of a patient is collected and a test tube for storing a blood sample to be tested needs to be replaced, the bending pressing plate 33 and the supporting plate 34 can be pinched by fingers, so that the pressing block 31 is inserted into the cylindrical groove 37 to flatten the hose 10, the hose 10 is further blocked, the blood loss of the patient can be prevented, and the blood consumption of the patient can be reduced; the used hollow insertion needle 7 can be inserted into the slot 20, the two sheet-shaped handles 8 are inserted into the clamping grooves 21, the puncturing part 1 is clamped in the cylinder 19 by the clamping block 22 matched with the clamping hole 9, the hollow insertion needle 7 can be prevented from being pulled out, medical staff can be effectively prevented from being punctured by the hollow insertion needle 7, the infection phenomenon caused by the puncture of the medical staff by the hollow insertion needle 7 is avoided, when the disposable blood collection tube is used, the plastic needle 17 is inserted into a test tube for blood sample submission, then the hollow insertion needle 7 is punctured into the arteriovenous blood tube of a patient, the blood of the patient flows through the plastic needle 17 through the hose 10 to enter the test tube for blood submission, when the test tube for blood submission is replaced, the bent pressing plate 33 and the supporting plate 34 can be pinched by fingers, the pressing block 31 is inserted into the cylindrical groove 37 to crush the hose 10, and further the hose 10 is enabled, can prevent patient's blood loss to reduce patient's blood quantity, when the blood sampling is accomplished, with cavity contact pin 7 assigns in the inside of slot 20, with two slice handles 8 assigns in the inside of draw-in groove 21, utilize fixture block 22 cooperation card hole 9 to die puncture portion 1 card in the inside of cylinder 19, can prevent cavity contact pin 7 from being extracted, can prevent effectively that cavity contact pin 7 from stabbing medical personnel, avoid causing medical personnel because of being stabbed by cavity contact pin 7 and take place the infection phenomenon.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a disposable arteriovenous puncture blood taking needle, includes puncture portion (1), blood sampling portion (4) and hose (10), its characterized in that: the puncture part (1) is connected with one end of the hose (10), the other end of the hose (10) is detachably connected with a connector (14), and the connector (14) is connected with the blood sampling part (4);
the puncture part (1) comprises a first plastic fixing pipe (5) with one end inserted into one end of a hose (10), a hollow contact pin (7) is packaged in one end, far away from the hose (10), of the first plastic fixing pipe (5) through a polytetrafluoroethylene block (6), two sheet-shaped handles (8) are symmetrically arranged outside the first plastic fixing pipe (5), and clamping holes (9) are formed in the two sheet-shaped handles (8);
the blood sampling portion (4) comprises a second plastic fixing pipe (15) with one end inserted in the connector (14), a connecting pipe (16) is fixedly arranged at the other end of the second plastic fixing pipe (15), and one end, far away from the second plastic fixing pipe (15), of the connecting pipe (16) is connected with a plastic needle head (17).
2. A disposable arteriovenous puncture blood lancet according to claim 1 characterized in that: the end part of the first plastic fixing pipe (5) inserted into one end of the hose (10) is a necking part (27), a plurality of convex rings (28) are arranged on the outer part of the necking part (27) at equal intervals, and a retainer ring (29) is integrally arranged on the necking part (27) and between the convex rings (28) and the sheet-shaped handle (8).
3. A disposable arteriovenous puncture blood lancet according to claim 2 characterized in that: the diameter of the convex ring (28) is smaller than that of the retainer ring (29).
4. A disposable arteriovenous puncture blood lancet according to claim 1 characterized in that: the connecting pipe (16) is far away from one end edge of the second plastic fixing pipe (15) and is of a fillet structure, and the plastic needle head (17) is far away from one end edge of the connecting pipe (16) and is of a fillet structure.
5. A disposable arteriovenous puncture blood lancet according to claim 1 characterized in that: two stop blocks (18) are symmetrically arranged outside the second plastic fixing pipe (15).
6. A disposable arteriovenous puncture blood lancet according to claim 1 characterized in that: the outer part of the hose (10) is also sleeved with a clamping part (2), the clamping part (2) comprises an arc-shaped clamping plate (30), one end of the arc-shaped clamping plate (30) is connected with a pressing plate (32), the other end of the arc-shaped clamping plate (30) is connected with a supporting plate (34), a convex block (36) is arranged in the middle of one side surface of the supporting plate (34) close to the pressing plate (32), a cylindrical through groove (35) parallel to the support plate (34) is arranged inside the convex block (36), and a cylindrical groove (37) communicated with the cylindrical through groove (35) is arranged in the middle of one side surface of the convex block (36) close to the pressure plate (32), a pressing block (31) which can extend into the cylindrical groove (37) is fixedly arranged on one side surface of the pressing plate (32) close to the convex block (36), and one end of the pressing plate (32) far away from the arc-shaped clamping plate (30) is connected with a bending pressing plate (33).
7. A disposable arteriovenous puncture blood lancet according to claim 1 characterized in that: the outer side surface of the polytetrafluoroethylene block (6) extends to the outside of the first plastic fixing pipe (5), and the outer side surface of the polytetrafluoroethylene block (6) is of an arc surface structure.
8. A protective device of a disposable arteriovenous puncture blood taking needle of claim 1 characterized in that: the hose comprises a sleeve (11) sleeved outside the hose (10), wherein an articulated lug (12) is integrally arranged on the outer side surface of the sleeve (11), a connecting belt (13) is articulated inside the articulated lug (12) through a pin shaft, and one end, far away from the articulated lug (12), of the connecting belt (13) is fixedly connected with a protection part (3);
the protective part (3) comprises a cylinder (19) fixedly connected to one end, far away from the hinge lug (12), of the connecting belt (13), a clamping groove (21) is formed in one end face of the cylinder (19), a slot (20) is formed in the center of the inner portion of the cylinder (19) passing through the clamping groove (21), and two elastic clamping parts (24) are symmetrically embedded in the junction of the inner portion of the cylinder (19) and the top wall of the clamping groove (21);
elastic clamping portion (24) is including fixed barrel (23) of inlaying in cylinder (19) inside, the both ends of barrel (23) are enclosed construction, and the inside of barrel (23) is equipped with spring (25), square slider (26) and fixture block (22), the upper end of spring (25) is inconsistent with the interior roof of barrel (23), and the bottom of spring (25) is inconsistent with the upper portion of square slider (26), the bottom of square slider (26) and the upper portion fixed connection of fixture block (22), the diapire that the bottom of fixture block (22) runs through barrel (23) extends to the inside of draw-in groove (21), and the bottom of fixture block (22) is inconsistent with the diapire of draw-in groove (21), the bottom of fixture block (22) is equipped with the inclined plane that faces the draw-in groove (21) outside.
9. The protective device of a disposable arteriovenous puncture blood taking needle according to claim 8, characterized in that: the other end surface of the cylinder (19) is of an arc structure.
10. The protective device of a disposable arteriovenous puncture blood taking needle according to claim 8, characterized in that: the cylinder (19) is made of polyethylene plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821053645.1U CN211583179U (en) | 2018-07-04 | 2018-07-04 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821053645.1U CN211583179U (en) | 2018-07-04 | 2018-07-04 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211583179U true CN211583179U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821053645.1U Expired - Fee Related CN211583179U (en) | 2018-07-04 | 2018-07-04 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211583179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523904A (en) * | 2018-07-04 | 2018-09-14 | 南通市中医院 | A kind of disposable artery and vein puncture blood taking needle and its protective device |
-
2018
- 2018-07-04 CN CN201821053645.1U patent/CN211583179U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108523904A (en) * | 2018-07-04 | 2018-09-14 | 南通市中医院 | A kind of disposable artery and vein puncture blood taking needle and its protective device |
| CN108523904B (en) * | 2018-07-04 | 2024-05-10 | 南通市中医院 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200929 Termination date: 20210704 |